Gabby Petito, 22, set out on a cross-country road trip with her fiancé in early July, leaving their Florida Gulf Coast town of North Port first for New York and then out west to tour National Parks. But in late August, Petitio's family stopped hearing from her and updates ceased on her public Instagram page, which she had been using to document her trip. Petito's mom, Nicole Schmidt, eventually reported her daughter missing on Saturday night to the Suffolk County Police Department, which is the area in Long Island where Petito grew up. The white converted camper van that Petito...